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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package packages_test
import (
"flag"
"fmt"
"os"
"golang.org/x/tools/go/packages"
)
// Example demonstrates how to load the packages specified on the
// command line from source syntax.
func Example() {
flag.Parse()
// Many tools pass their command-line arguments (after any flags)
// uninterpreted to packages.Load so that it can interpret them
// according to the conventions of the underlying build system.
cfg := &packages.Config{Mode: packages.NeedFiles | packages.NeedSyntax}
pkgs, err := packages.Load(cfg, flag.Args()...)
if err != nil {
fmt.Fprintf(os.Stderr, "load: %v\n", err)
os.Exit(1)
}
if packages.PrintErrors(pkgs) > 0 {
os.Exit(1)
}
// Print the names of the source files
// for each package listed on the command line.
for _, pkg := range pkgs {
fmt.Println(pkg.ID, pkg.GoFiles)
}
}
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